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以Bi(NO3)3和NH4VO3作为原料,偕胺肟纤维作为配体,采用液相法合成钒酸铋/偕胺肟纤维(Bi VO4/AOCF),通过X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、能谱(EDS)等手段对样品进行了表征分析,结果显示,颗粒状的Bi VO4均匀分布在纤维表面,并以配位键的形式与纤维结合。以罗丹明B为模拟污染物来考察Bi VO4/AOCF的光催化活性,实验结果表明,Bi VO4/AOCF有着很好的光催化活性,并且在酸性条件下的催化活性更好。催化剂对活性黄、亚甲基蓝和甲基橙也表现出很好的光催化活性,且可以重复使用多次,光催化反应过程符合一级反应动力学。
Bi (NO3) 3 and NH4VO3 as raw materials, amidoxime fiber as ligand, liquid-phase synthesis of bismuth vanadate / amidoxime fiber (Bi VO4 / AOCF), by X-ray powder diffraction (XRD), scanning electron Microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to characterize the sample. The results showed that the granular Bi VO4 was uniformly distributed on the surface of the fiber and bound to the fiber as a coordination bond. The photocatalytic activity of Bi VO4 / AOCF was investigated with rhodamine B as a simulated pollutant. The experimental results show that Bi VO4 / AOCF has good photocatalytic activity and better catalytic activity under acidic conditions. The catalysts also showed good photocatalytic activity on Reactive Yellow, Methylene Blue and Methyl Orange, and could be reused many times. The photocatalytic reaction was in accordance with the first order reaction kinetics.